【名词&注释】
空压机(air compressor)、价格低廉(low price)、填料函式
[单选题]主机起动用的空气瓶至少应有2个,在进行起动次数试验时,应()。
A. 开启1个空气瓶,并起动空压机补气
B. 开启2个空气瓶,并起动空压机补气
C. 开启1个空气瓶,不可补充空气
D. 开启1个空气瓶,可补充空气
查看答案&解析
查看所有试题
学习资料:
[单选题]测量曲轴臂距差时,曲轴旋转一周,可依次测得臂距值为()。
A. L右、L上、L下、L左
B. L上、L下、L左、L右
C. L左、L右、L上、L下
D. L上、L右、L下、L左
[单选题]填料函式密封装置具有()等优点。Ⅰ.结构简单;Ⅱ.价格低廉;Ⅲ.工作较可靠;Ⅳ.维护管理方便;Ⅴ.易于检修。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ+Ⅴ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅲ+Ⅳ+Ⅴ
[单选题]Vee-type engines have the connecting rods from two cylinders connected to each () of the crankshaft.
A. throw
B. web
C. main bearing
D. deflectio
[单选题]One major disadvantage of a low-speed diesel as compared to a steam main-propulsion system is().
A. the extra weight required for the diesel reduction gearing
B. a minimum speed for the engines that limits the minimum speed of the vessel
C. the higher fuel consumption per SHP
D. the low efficiency of the system when a controllable pitch propeller is used
本文链接:https://www.51bdks.net/show/6ygz06.html